Boiler repair device



Sept 7, 1943- H.`E|sENBERG 'A 2,329,037

BoILER REPAIR DEVICE Filed may 14 1940 Henry f/eNNeVEN-FQR. 671;, afg@ ATTORNEY.

Patented Sept. 7, 1943` Le Home imminence "lThespresentinventionarelates#totimprovements in repair devicesflandlmore# particularlyltoian Uilfimprovedf-boilerfrepaivplate. y

When a boilerpn amineu spr-ings ail'ala'ftthere @causingsaidbacking *to Lassume and` h'oldcthe lugiip relatively-large holes. g Other objects of my inventionfwilljbe set'ffo'rth VinJ the following description `and "drawing which "jill illustrateY preferred Iembodiment-s thereofftbel iolai'ectsfofniy inventionisrintendedgenerallj to Lexplain ftheV samewithout *limitingitislin'fany manner.

Jiigureillis a'isectional View along line I-I Aiol Figure 2;

Figure 2 is a top plan view of one embodiment of my device, shown partially broken `away and Vsecured to a boiler; l

, Figure 3 is a sectional view along line 3--3 `of Figure 1; f Figure 4 is a side view of another embodiment of my invention secured to a'boiler, shown partially in section; and

Figure 5 is a front View of the embodiment i1- lustrated in Figure 1-3, showing my device unattachedtoa boiler. l Referring to the drawing, B designates a boiler having holes or leaks formed therein.

Referring more particularly to Figures 5, my

device consists primarily of av gasket 3, a backing 4, a formerf, and means 6 vfor retainingsaid 55 Another i' object-A f-my invention is to )provide Ulflf a boilerrepairplatewhichjwill cover ae-relatively large area-the same-sizeI plug+being-adaptable 1 #foruse on boilers having; diflerentfdegr'ee's of cur- `ide Vaj boiler repairplate :whichmay-be eused' to i asigular''slia-pA fuperimposed' onisajidiigasket 51' @and otifsiimilarfisnape-thereto,yistherelatiVeIy gestitilresilientbakingmembemefwhicn isfprgreriaboilen asifollows:` l g The horizentalarm lfofthe'Lishaped-sblt 9 3 islinsertedllthroughlonefoftheleaksforlhiles in .-:3- th'e lboi-lerlsBfthembsiiappropriate andv gerufen-` -u isnt holelbeing one.mrhioh willnieadilyyreceive the arm I 6 and which `is sopesitiend'ltliaithe eagasketzlmemberilwillcompletely icover anyl sur- 40 rounding leaks. Thereafter the nut I2 is tightened, thus compressing the rubber washer I0 and the gasket 4 Vin the `area below the Washer I0 and causing the horizontal arm I6 to press against the inner face of the boiler B. In order to conveniently tighten the nut` I2, the former 5 andthe nut I5 may be removed so as to allow` free access to said nut and thereafter replaced` The nut- I5 is then tightened, forcing former plate 5 downwardly, the edges I4 thereof' causing the backing 4 and the gasket 3 `to assume the shape oftheV boiler and compressing the gasket 3 to said boiler. `It should be noted that the edges I 4 of the former 5 and the longitudinal axis of the Ygasket 3 and backing 4 run parallel to the straight line elements of the boiler B.`

` ona defective wall.

l The embodiment illustrated in Iigure 4 diiers n slightly from the aforedescribed embodiment and additional pressure to the backing l` and the gasket 3 the additional pressure being applied after thenut l5' has been tightened.

I have shown preferred embodiments of rmy invention, but numerous alterations and omis? sions vmay be made Without departingffromits' spirit. For example, I have shown a singleretaining bolt member passing'through the center in plugging leaks in a defective boiler, said device comprising a gasket, a backing member superimposed on said gasket and a forming plate superimposed on said backing member, said forming plate being concave and having only a pair of parallel edges in Contact with said backing member, axially concentric holes formed in said -gasket backing member an-d forming plate, a bolt passing through said holes said bolt having at its lower end means, said means being adapted to engage the inner face of the boiler, and a nut engaged by the free end of said bolt member,

. said former plate having a plurality of threaded of the former plate 5, but it is obviousV that a pair, ,i

of rthese may be positioned on eachend of the former plate. Nor do I Wish to be limited to the type of retaining device described, since other types may be substituted therefor and different shapes of formingplates may also, be used. 4, [While my devicefhas been illustratedS, ap-

fplied :,to a cyl/indrically ,y shaped boiler Wall, it should be :understood that the` device may be ap- A plied to a vvall of any shapeor'an absolutelyat Wall.` `Although I have named my articleaboiler frepair'device, it maybe applied to numerous f lf vvalls such as'large pipes, :boats, etc,

'I wishit tobe understood that Wherever inthe claims .I mention or refer to a forming plate or '.4' forming member I wishthis to include any vmeans Whose function is to shape the backing member` to conform to the defective Wall fand to bear on said backing member.

I claim! f 1. A .device of Ythe yc haracterl described com- .;prisin'g a lgasket member, a backing, member Superimposed on said gasket member, a` former A platesuperimposed on said backing member, said formerplate being concave andhaving only a V' V pair of paralleledges in contact with said backing member, and means for retaining said device y. 2."A device of thecharacter describedor use in plugging leaks in a defective boiler, s aid device comprising a gasket, a backing memberrsuperimposed. on said Agasket and aforming plate -sunperimposed on said backing member, said forming plate having only a pair of parallel edges in contact with Asaid backingmemben; axiallyconcentric holes formed in said gasket, backing member and forming plate, a bolt Y. passing throughsaid holes said boltA having meansat its lower end adapted to enga-gethe inner `face. of the boiler,and a nut engaged by thefree end of said bolt member.

'3. `A device of the character dvescribed'jor. use

holes tapped therein, said holes having set screws engaged therein.

.4. A device as claimed in claim 3, in which there'are provided a rubber Washer, a metal washer superimposed on said rubber washer, andanut superimposed on said metal washer, said V'metal and rubber Washers and said nut being engaged by the bolt between the backing memberand the forming plate.

5. A device of the character described comprisin-g a gasket, a pliable backing member superimposed'on said gasket and similarly shaped thereto, a hollow semicylindrically shaped forming plate superimposed on said backing member, the longitudinal edges only of said plate being in contactfwith said backing member, means for forcing the edges of said forming plate against the upper face of the backing member, and means for retaining said device against a defective Wall.

6. A device as claimed in claim 5 in which the gasket and backing member are of rectangular shape and in which Athe edges of the forming plate which come in contact with the backing member are parallel to the longitudinal axis of the gasket and said backing member.

"7. A device ofthecharacter described for use in plugging leaks in a defective boiler; said-device i comprising a gasket, a backing member superimposed on saidgasket and a forming plate superimposed on said backing member, said forming plate having only a pair of parallel edges in contact With said backing member, axially concentric holes formed in said gasket, backing member and forming plate, a boltpassing through said holes said bolt havin-g means atits lower end adapted lto engage the inner face of the boiler, and a nut engaged bythe free end of said bolt member, a rubber Washer, a metalvvasher super- .'imposed on said rubber washer, and a nut suforming plate. I

perimposed on said metal Washersaid metal and rubber Washers and said nut beingengaged by they bolt; b'etvveenA the backing member and the nnNnY EIsENBEiafG. 

